Poor Performance 560SL, What Now?

[droederer]

My 1986 560SL is driving me crazy. The problem is that it has good performance when the engine is cold, but as soon as it warms up the performance is extremely poor. When the engine is cold the intake manifold vacuum is at 10 inhg and the enrichment ma is in tolerance, as the engine warms up my vacuum falls to 7-6 inhg and the enrichment falls to well below tolerances. All fuel pressures look good.
I have replaced the temperature sensor, ignition control module, airflow pot, fuel pressure regulator, fuel distributor, fuel pump, fuel filter, distributor, all new fuel injectors, exhaust system, o2 sensor, and overload protection relay. I also changed out the K-jetronic control module

My question is where do I go now?

David
1986, 560SL